Chess Board
[ECO code C70 > 99] Do not scroll the screen..! Move Move Move Move Move Move Here Move Here Move Here Move Here Move Here Move Here Move Here
RUY LOPEZ
Morphy Defence

Black's QRP attacked White's QKt5(b5) bishop.
White's threatened Bishop usually retreats to the QR-file (ie. the a-file), set to move a third time to QKt3(b3) if pursued by 4..P-QKt4. Black may now reply with one of several deferred defences. W-Alt.
	White	Black
 1.	P-K4	P-K4
 2.	Kt-KB3	Kt-QB3
 3.	B-Kt5	P-QR3
 4.	B-R4

BLACK to Move or Undo or Jump or Clear
 
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BLACK moves King's Bishop:

B-Kt5 (Bb4) or B-B4 (Bc5) ?

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BLACK moves King's Knight:

KKt-K2 (Nge7) or Kt-B3 (Nf6) ?

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